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Transfusing young mice with blood from older rodents quickly triggers ageing, suggesting that cellular ageing isn’t just a case of wear and tear.
There is a longstanding hypothesis that surgically connecting an old mouse with a young rodent causes a transfer of blood that de-ages the older animal. While this benefits the older mouse, the effects on the young donor rodent were less clear.
To learn more, Irina Conboy at the University of California, Berkeley, and her colleagues transfused blood between young and old mice. Those aged 3 months got blood from animals that were approaching 2 years old.
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